Home / 21,893,415.40-32,840,123.10-20,997,620.20

Finding the Fourth Proportional to 21,893,415.40, 32,840,123.10 and 20,997,620.20

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Solution

The fourth proportional to 21,893,415.40, 32,840,123.10 and 20,997,620.20 is: 31,496,430.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,893,415.40 : 32,840,123.10 = 20,997,620.20 : x
  2. Step 2: Convert to fraction form
    21,893,415.40/32,840,123.10 = 20,997,620.20/x
  3. Step 3: Cross multiply
    21,893,415.40x = 32,840,123.10 × 20,997,620.20
  4. Step 4: Simplify right side
    21,893,415.40x = 689,564,432,175,046.62
  5. Step 5: Solve for x
    x = 689,564,432,175,046.62/21,893,415.40
  6. Step 6: Final answer
    x = 31,496,430.30

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.